{"id":91038,"date":"2020-08-07T13:42:21","date_gmt":"2020-08-07T11:42:21","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-sistemnoj-biblioteki-glibc-2-32"},"modified":"2020-08-07T13:42:21","modified_gmt":"2020-08-07T11:42:21","slug":"vypusk-sistemnoj-biblioteki-glibc-2-32","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/vypusk-sistemnoj-biblioteki-glibc-2-32","title":{"rendered":"Glibc 2.32 s\u00fcsteemiteegi v\u00e4ljaanne","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>P\u00e4rast kuue kuu arendust\u00f6\u00f6d <noindex><a rel=\"nofollow\" href=\"https:\/\/sourceware.org\/pipermail\/libc-announce\/2020\/000029.html\">avaldatud<\/a><\/noindex> s\u00fcsteemiraamatukogu v\u00e4ljaanne <noindex><a rel=\"nofollow\" href=\"http:\/\/ftp.gnu.org\/gnu\/glibc\/\">GNU C raamatukogu<\/a><\/noindex> (glibc) <noindex><a rel=\"nofollow\" href=\"http:\/\/sourceware.org\/glibc\/wiki\/Release\/2.32\">2.32<\/a><\/noindex>, mis k\u00e4tkeb t\u00e4ielikult ISO C11 ja POSIX.1-2017 standardite n\u00f5udeid. Uue versiooni koostisosadesse on lisatud parandusi 67 arendajalt. <\/p>\n<p>Glibc 2.32-s rakendatud <noindex><a rel=\"nofollow\" href=\"http:\/\/sourceware.org\/git\/?p=glibc.git;a=blob_plain;f=NEWS;hb=HEAD\">t\u00e4iendusi<\/a><\/noindex> poolelt v\u00f5ib m\u00e4rkida:\n<\/p>\n<ul>\n<li class=\"l\"> Toetust on lisatud Synopsys ARC HS (ARCv2 ISA) protsessoritele. Portimiseks on vajalik v\u00e4hemalt binutils 2.32, gcc 8.3 ja Linuxi tuum 5.1. Toetatakse kolme erinevat ABI'd: arc-linux-gnu, arc-linux-gnuhf ja arceb-linux-gnu (big-endian);\n<li class=\"l\"> Rakendatud on auditimoodulite laadimine, mis on m\u00e4\u00e4ratletud DT_AUDIT ja<br \/>\n  DT_DEPAUDIT sektsioonides t\u00e4idetava faili.<\/p>\n<li class=\"l\"> Powerpc64le arhitektuuri jaoks on lisatud IEEE128 long double t\u00fc\u00fcbi tugi, mida saab aktiveerida, kui kompileerimisel kasutatakse valikut &#171;-mabi=ieeolongdouble&#187;.\n<li class=\"l\"> M\u00f5ned API-d on m\u00e4rgistatud GCC atribuudi &#8216;access&#8217; abil, mis v\u00f5imaldab GCC 10 kompileerimise ajal genereerida kvaliteetsemaid hoiatusi v\u00f5imalike puhver \u00fcletamiste ja muude lubamatute piiride m\u00e4\u00e4ramisel.\n<li class=\"l\"> Linuxi s\u00fcsteemide jaoks on rakendatud funktsioonid pthread_attr_setsigmask_np ja<br \/>\n  pthread_attr_getsigmask_np, mis annavad rakendusele v\u00f5imaluse m\u00e4\u00e4rata signaalimask loodud l\u00f5imede jaoks, kasutades pthread_create'i.<\/p>\n<li class=\"l\"> Koodide andmed, s\u00fcmbolite t\u00fc\u00fcpide teave ja transliteratsioonitabelid on ajakohastatud, et toetada Unicode 13.0.0 spetsifikatsiooni;\n<li class=\"l\"> Lisatud on uus pealkirjafail , mis m\u00e4\u00e4ratleb muutuja __libc_single_threaded, mida saab kasutada rakendustes \u00fchesuundsete optimeerimiste jaoks.\n<li class=\"l\"> Lisatud funktsioonid sigabbrev_np ja sigdescr_np, mis tagastavad signaali l\u00fchendatud nime ja kirjelduse (n\u00e4iteks &#171;HUP&#187; ja Hangup&#187; SIGHUP jaoks).\n<li class=\"l\"> Lisatud funktsioonid strerrorname_np ja strerrordesc_np, mis tagastavad vea nime ja kirjelduse (n\u00e4iteks &#171;EINVAL&#187; ja &#171;Invalid argument&#187; EINVAL jaoks).\n<li class=\"l\"> ARM64 platvormile on lisatud lipp &#171;&#8212;enable-standard-branch-protection&#187; (v\u00f5i -mbranch-protection=standard GCC-s), mis aktiveerib ARMv8.5-BTI (Branch Target Indicator) mehhanismi, et kaitsta k\u00e4su komplekte, millele ei tohiks haruk\u00e4iguga vahetada. Juhistele \u00fclemineku blokeerimine on rakendatud, et v\u00e4ltida gadgetide loomist h\u00e4kitsemistes, mis kasutavad tagasi suunatud programmeerimise (ROP &#8212; Return-Oriented Programming) tehnikaid, kus r\u00fcndaja ei \u00fcrita oma koodi m\u00e4llu paigutada, vaid kasutab juba olemasolevaid masina juhiseid, mis l\u00f5pevad juhtimise tagastamise juhtnupuga, et luua vajalik funktsionaalsus.\n<li class=\"l\"> Teostati p\u00f5hjalik vana funktsionaalsuse puhastus, sealhulgas eemaldati valikud &#171;&#8212;enable-obsolete-rpc&#187; ja &#171;&#8212;enable-obsolete-nsl&#187;, p\u00e4isefail . Funktsioonid sstk, siginterrupt, sigpause, sighold, sigrelse, sigignore ja sigset, massiivid sys_siglist, _sys_siglist ja sys_sigabbrev, s\u00fcmbolid sys_errlist, _sys_errlist, sys_nerr ja _sys_nerr ning NSS-moodul hesiod on kuulutatud vananenuks.\n<li class=\"l\"> ldconfig on vaikimisi muudetud kasutama uut formaati ld.so.cache, mida glibc toetab juba peaaegu 20 aastat.\n<li class=\"l\"> Turbeteated:\n<ul>\n<li class=\"l\"> CVE-2016-10228 &#8212; l\u00f5pmatus ts\u00fcklis ikoonv utiliidis, mis ilmneb, kui see k\u00e4ivitatakse valikuga &#171;-c&#187;, vale mitme baitide andmete t\u00f6\u00f6tlemisel.\n<li class=\"l\"> CVE-2020-10029 &#8212; virnastuse rikkumine trigonometriliste funktsioonide kutsumisel vale nullargumendi kasutamisel.\n<li class=\"l\"> CVE-2020-1752 &#8212; m\u00e4lu alas oleva viidatud andmete (use-after-free) p\u00e4\u00e4semine glob funktsioonis, kui kodukatalooge avatakse (&#171;~user&#187;) failiteedes.\n<li class=\"l\"> CVE-2020-6096 &#8212; vale k\u00e4sitlemine ARMv7 platvormil negatiivsete v\u00e4\u00e4rtuste parameetriga memcpy() ja memmove(), mis m\u00e4\u00e4rab kopeeritava ala suuruse. <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53003\">V\u00f5imaldab<\/a><\/noindex> korraldada koodi t\u00e4itmise, kui t\u00f6\u00f6deldakse memcpy() ja memmove() funktsioonides teatud viisil vormindatud andmeid. \u00dcheks probleemiks on see, et <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53371\">j\u00e4tkus<\/a><\/noindex>  on olnud parandamata peaaegu kaks kuud alates avalikustamise hetkest ja viis kuud alates Glibc arendajatest teavitamisest.\n<\/ul>\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Allikas: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53504\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u0448\u0435\u0441\u0442\u0438 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 GNU C Library (glibc) 2.32, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u0441\u043b\u0435\u0434\u0443\u0435\u0442 \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f\u043c \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043e\u0432 ISO C11 \u0438 POSIX.1-2017. \u0412 \u0441\u043e\u0441\u0442\u0430\u0432 \u043d\u043e\u0432\u043e\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u044b \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043e\u0442 67 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432. \u0418\u0437 \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u0432 Glibc 2.32 \u0443\u043b\u0443\u0447\u0448\u0435\u043d\u0438\u0439 \u043c\u043e\u0436\u043d\u043e \u043e\u0442\u043c\u0435\u0442\u0438\u0442\u044c: \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 Synopsys ARC HS (ARCv2 ISA). \u0414\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u043e\u0440\u0442\u0430 \u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f \u043a\u0430\u043a \u043c\u0438\u043d\u0438\u043c\u0443\u043c binutils 2.32, [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-91038","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u0448\u0435\u0441\u0442\u0438 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri 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